The fabric formwork book : methods for building new architectural and structural forms in concrete

Description

Concrete is the most used man-made material in the world and is the fundamental physical medium for most of the world's architecture and construction. The character of concrete is largely the product of the rigid moulds that have shaped it since its invention in antiquity. The advent of flexible moulds, however, marks a radical break from conventional practice - and conventional concrete architecture. This handbook takes a comprehensive and generous approach that includes technical, historical and theoretical aspects of the subject.  Read more... Part 1. About flexible formworks : On flexibility : Control New language of form -- The history of fabric formwork / Diederik Veenendaal : The inventions of the fabric-formed floor The wider potential of fabric formwork The Ctesiphon system and its legacy Shell structures and the cost of formwork Architectural expression Marine and geotechnical applications of fabric formworks Contemporary fabric-formed architecture -- Structural intelligence in flexible materials / Edward Allen, John Ochsendorf, and Mark West : Funicular forms Flow of forces in solids Following curved force flows in fabric-formed structures Pressurized membranes: a co-incidence of skin Materials savings in flexible fabric moulds -- Part 2. Construction : Introduction : Flat-sheet moulds Models Subtly different skills -- Textiles : The basics : General considerations Material behavior (mechanical properties) Textile structure Preferred formwork fabric types (woven polyethylene (PE) and polypropylene (PP) fabrics) Coated vs. uncoated PP and PE textiles Fabric handling Slack-sheet moulds Energized (tensioned) formwork sheets Sewing Concrete's constituent parts: mix designs Special considerations with permeable fabric moulds -- Connections / Mark West and Ronnie Araya : General considerations Fabric-to-fabric connections Fabric-to-frame connections Other connections Edge-frame connections against curved fabric sheets Scaffolding strategies Reinforcing -- Tips & tricks : Water tests Welding burns Drawing on plastic fabrics Captured fabric Undercut or "keyed" rigidified fabric moulds Cutting, and finishing plastic rope Cutting plastic fabrics Heat-setting thermoplastic sheets Air bubbles (bug holes) Fitting rigid frames to fabric-formed concrete surfaces Rope tricks for mechanical advantage in pre-tensioning Complex surface geometry made simple On shaping impactos A note on tape Flexible mould edges External vibration A note on filling permeable moulds On filling coated-fabric moulds External manipulations of a pressurized mould Fragility of recently set concrete in flexible moulds On the robustness of flexible moulds: repair during casting -- Cast-in-place column moulds : Pressure and fabric-tension in a column mould Commercially available column moulds Custom-made column moulds -- Cast-in-place wall moulds : "Quilt-point" method Frame-restraint method Zero-waste wall formwork Bulge-wall method -- Open trough moulds : Foundation formworks Variable-section open trough moulds -- Non-pressurized moulds / Mark West and Ronnie Araya : Open pan fabric formworks Vibrating concrete in permeable, open pan moulds Hanging sheet moulds Funicular vaults and thin-shells, double curvature in shells -- Truss and branching forms : Naturally formed branching shapes Summation: construction with fabric formworks.